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In Universal, bestselling physicists Brian Cox and Jeff Forshaw (Why Does E=mc2?) take us on an inspirational journey of scientific exploration. They show that, by asking questions about the world around us, anyone can think like a physicist and grasp the breath-taking grandeur of the cosmos.Universal guides you to make your own measurements between the Earth and neighboring planets by using the parallax method; follow in the footsteps of cosmologist Edwin Hubble to discover that the universe is expanding; and work out the Earth's radius by applying Pythagoras's theorem to simple observations you can make on a beach.With full explanations, diagrams, and astonishing photographs, Cox and Forshaw reveal how we can all understand some of the most fundamental questions about our Earth, Sun, solar system, and the galaxies beyond.